Thermal transfer printing method and apparatus

Details Thermal transfer printing method and apparatus Thermal transfer printing method and apparatus

B - Operations, Transporting

41

F

B41F 16/00 (2006.01) B41J 2/36 (2006.01) B41M 5/34 (2006.01) G06K 15/02 (2006.01) H04N 1/40 (2006.01)

Patent

CA 2141835

ABSTRACT OF THE DISCLOSURE A thermal transfer printing method and apparatus can arbitrarily set hues of black by using a single ink sheet, and continuously increase the density of printed black images having various hues to the maximum. A thermal head for printing is pressed against an ink sheet 1A, on which black inks 3a and 3b each having a reddish hue and a greenish hue are alternately applied in wider areas than print areas, while changing the ratio of thermal transfer energy amounts for the individual inks, thereby thermally transferring amounts of the inks in accordance with the corresponding thermal transfer energy amounts onto a printing paper placed beneath the ink sheet 1A.

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